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Scientist Spain, Barcelona Jobs

17 Job Offers

Senior Data Scientist
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Senior Data Scientist role in Barcelona, Spain, driving customer engagement through machine learning and experimentation. You'll own core models for recommendations and personalization, impacting user retention and revenue. Requires deep ML, statistical modeling, and Python expertise, plus SQL an...
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Spain , Barcelona
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Delivery Hero
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Principal Applied Scientist
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Join Microsoft’s Azure AI Knowledge team in Barcelona as a Principal Applied Scientist. Lead the development of agentic retrieval systems and LLM-powered query workflows for enterprise customers. You will drive research into production, build evaluation metrics, and collaborate across teams to sh...
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Spain , Barcelona
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Microsoft Corporation
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Senior Data Scientist
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Madbox seeks a Senior Data Scientist to drive end-to-end projects in Barcelona, Spain. You will analyze player behavior, design A/B tests, and develop predictive models using Python, SQL, and GCP. Ideal candidates have 3+ years in Data Science, strong statistics skills, and experience with large-...
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Spain , Barcelona
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Madbox
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Senior Data Scientist
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Join our Trust & Safety mission in Barcelona as a Senior Data Scientist. You will build and deploy production ML models (XGBoost, Neural Networks) to combat fraud and assess risk. Leverage your 5+ years of Python and ML expertise on a cross-functional team. Enjoy a competitive salary, annual bonu...
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Spain , Barcelona
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Adevinta
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Applied Scientist Intern
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Join Amazon Science as an Applied Scientist Intern in Barcelona or Madrid. You will design algorithms and deploy production-level solutions in ML, AI, or robotics. This role offers a competitive stipend, mentorship, and the potential to publish at top-tier conferences. Ideal for PhD/MS students p...
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Spain , Barcelona; Madrid
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Amazon Pforzheim GmbH
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Senior Data Scientist
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Join our Trust & Safety mission in Barcelona as a Senior Data Scientist. You will build and deploy production ML models (XGBoost, Neural Networks) to detect fraud and assess user risk. Leverage your 5+ years of Python and ML expertise to have a real impact on platform safety. Enjoy competitive sa...
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Spain , Barcelona
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Adevinta
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Senior Data Scientist
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Join our mission to enhance platform safety for millions of users in Barcelona. As a Senior Data Scientist, you'll build end-to-end ML models, specializing in Computer Vision, NLP, and Generative AI. We offer an attractive salary, annual bonus, and a flexible "Work From Anywhere" policy. Apply yo...
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Spain , Barcelona
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Adevinta
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Senior Applied Scientist
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Join Microsoft's Location Service team in Barcelona as a Senior Applied Scientist. You will advance global location intelligence through large-scale data modeling, geospatial analysis, and rigorous experimentation. Your work will power context-aware experiences in products like Bing, Azure Maps, ...
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Spain , Barcelona
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Microsoft Corporation
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Senior Data and Applied Scientist
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Join the Bing Places team in Barcelona to shape the future of local search. As a Senior Data Scientist, you'll design relevance metrics, build LLM labeling pipelines, and apply RAG techniques. Leverage your advanced degree to improve search quality for millions using cutting-edge AI and data scie...
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Spain , Barcelona
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Microsoft Corporation
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Senior Data Scientist
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Join our team in Barcelona as a Senior Data Scientist to enhance platform safety for millions. You will design and build end-to-end ML models, specializing in Computer Vision, NLP, and Generative AI. Enjoy a competitive salary, annual bonus, and flexible "Work From Anywhere" benefits in a collabo...
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Spain , Barcelona
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Adevinta
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Senior Data Scientist
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Spain , Barcelona
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Adevinta
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Senior Data Scientist
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Join our Trust & Safety mission in Barcelona as a Senior Data Scientist. You will build and deploy production ML models for fraud detection and risk assessment. We require 5+ years of experience with Python, classical ML, and end-to-end model lifecycle management. Enjoy a competitive salary, annu...
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Spain , Barcelona
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Adevinta
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Senior Data Scientist
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Join Adevinta in Barcelona as a Senior Data Scientist. Develop end-to-end ML models, specializing in Computer Vision, NLP, and Generative AI, to enhance a platform for millions. Enjoy a competitive salary, annual bonus, and flexible "Work From Anywhere" days in a collaborative, growth-oriented en...
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Spain , Barcelona
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Adevinta
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Applied Scientist
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Spain , Barcelona
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Microsoft Corporation
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Senior Data Scientist
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Join our Trust & Safety mission in Barcelona as a Senior Data Scientist. You will build and deploy production ML models (XGBoost, Neural Networks) to detect fraud and assess user risk. Leverage your 5+ years of Python and ML expertise on a cross-functional team. Enjoy a competitive salary, annual...
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Spain , Barcelona
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Not provided
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Adevinta
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Principal Scientist
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Lead the future of data analytics as a Principal Scientist at Microsoft Azure Data in Barcelona. Design and build novel data systems, leveraging your advanced degree and extensive data-science experience. Collaborate on flagship products like Microsoft Fabric and Power BI to power the AI-driven d...
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Spain , Barcelona
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Microsoft Corporation
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Staff Data Scientist
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Lead data science initiatives with company-wide impact at Heetch's Barcelona hub. As a Staff Data Scientist, you'll apply advanced analytics, experimentation, and ML to shape marketplace strategy and mentor a growing team. We seek a technical leader with 7+ years' experience, skilled in Python, S...
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Spain , Barcelona
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Heetch
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About the Scientist role

A career as a scientist offers a dynamic and intellectually stimulating path defined by inquiry, analysis, and innovation. Scientist jobs span a vast array of industries, from healthcare and biotechnology to technology, environmental science, and data-driven business. At its core, the profession involves designing and conducting experiments, studies, or analyses to answer specific questions, test hypotheses, or solve complex problems. Whether working in a laboratory, a field setting, or behind a computer, scientists are responsible for applying rigorous methodologies to generate reliable data and actionable insights.

Common responsibilities for scientist roles include formulating research questions, developing experimental protocols, and collecting and processing samples or datasets. A significant portion of the work involves data analysis, where scientists use statistical software, programming languages like Python or R, and specialized tools to interpret results. Documentation is critical; scientists must maintain detailed records, write technical reports, and prepare findings for publication or presentation to stakeholders. In many settings, collaboration is key—scientists often work in interdisciplinary teams, sharing expertise with engineers, product managers, or medical professionals to translate research into practical applications. Quality control, safety compliance, and staying current with the latest scientific literature are also essential daily duties.

The typical skills and requirements for scientist positions are rigorous. Most roles require at least a bachelor’s degree in a relevant scientific field, with many demanding a master’s or doctorate for senior or specialized positions. Core competencies include strong analytical and critical thinking abilities, meticulous attention to detail, and proficiency in quantitative methods. Technical skills vary by specialization—a data scientist might need expertise in machine learning and big data frameworks, while a clinical lab scientist must master diagnostic techniques and regulatory standards. Communication skills are equally vital, as scientists must clearly convey complex ideas to non-experts, write grant proposals, or present findings at conferences. Adaptability and a commitment to ethical research practices are foundational to the profession.

Ultimately, scientist jobs offer the opportunity to drive discovery and innovation. From developing new treatments and technologies to improving business strategies and environmental stewardship, scientists play a crucial role in advancing knowledge and solving real-world challenges. The profession rewards curiosity, persistence, and a passion for evidence-based problem-solving, making it a deeply fulfilling career for those dedicated to pushing the boundaries of what is known.